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What are all the possible values for HTTP Content-Type header? I have to validate the Content-Type header value before passing it to an HTTP request Is there a specific list for all the possible values of Content-Type? Otherwise, is there a way to validate
How can I check if a string is a valid number? - Stack Overflow Often, a 'valid number' means a Javascript number excluding NaN and Infinity, ie a 'finite number' To check the numerical validity of a value (from an external source for example), you can define in ESlint Airbnb style :
regex - Validating IPv4 addresses with regexp - Stack Overflow Following are the rules defining the valid combinations in each number of an IP address: Any one- or two-digit number Any three-digit number beginning with 1 Any three-digit number beginning with 2 if the second digit is 0 through 4 Any three-digit number beginning with 25 if the third digit is 0 through 5
What does the @Valid annotation indicate in Spring? IIRC @Valid isn't a Spring annotation but a JSR-303 annotation (which is the Bean Validation standard) What it does is it basically checks if the data that you send to the method is valid or not (it will validate the scriptFile for you)
How to check whether a string is Base64 encoded or not All that you can determine is that the string contains only characters that are valid for a base64 encoded string It may not be possible to determine that the string is the base64 encoded version of some data for example test1234 is a valid base64 encoded string, and when you decode it you will get some bytes There is no application independent way of concluding that test1234 is not a
How can I validate an email address using a regular expression? Over the years I have slowly developed a regular expression that validates most email addresses correctly, assuming they don't use an IP address as the server part I use it in several PHP programs